or u can try GPSLogger II at appsworld

if u wanna use in Malaysia. the best could be Google Maps
but if you want free voice guided navigation, i suggest Waze

I found that Waze is one of the best gps apps , for BB i rate it as the best voice guided navigation apps..

hope u can contribute in reporting error,traffic,jam,accident, and so on,..
this is social GPS apps..

you even can chat with every waze user,.. so.. if there are any accident/hazard/trafic jam.. u can see someone alert u about it.. and u will know what the best route to use...

http://www.facebook.com/pages/Waze-in-Mala...195356993833962 <<< hope support it, 

u can try also wisepilot for blackberry.. have 5 day trial (and their service can be purchase in app)
here is the link > https://appworld.blackberry.com/webstore/content/242?lang=en

are you in your house or in building..? of course if you want to use gps , you need to go outdoor..